DFG250-1
Operating Manual
STARTING WORK
BEFORE STARTING WORK CHECK SET UP OF THE MACHINE AND GRINDING
PLATE HAS BEEN COMPLETED.
1. Ensure the power supply is correct.
DFG 250 - this should be a 415v 16 amp supply from the mains or generated with a
minimum supply of 10 kva on 50 cycles
2. DFG 250 - the plug on the machine is a 5 pin 415v 16 amp red plug
3. Loosen set screws securing front and rear dust skirt enclosures to allow free movement
up and down.
4. Lower the machine on to the grinding plate by releasing foot pedal.
5. It is vital at this stage that the machine should be set to grind the floor along the same
plane. Incorrect set up will result in uneven diamond wear, deep grinding marks, vibration
and damage to the flexible coupling that support the heads.
6. Set the machine down on the floor to be prepared and check the level of the floor with a
spirit level. Place the spirit level on the front side of the machine and adjust the rear wheel
height using the black hand wheel until the level of the machine is the same as the level of
the floor. Then lock the hand wheel.
7. Set the dust skirts to the correct height approx 0.5mm clear of the floor and tighten up
screws.
8. Lift the floor grinder up using foot pedal ensuring the grinding head is clear of the floor
and fit either a dust extraction hose or a water supply. Examine grinding plate for any
damage and check allen screw bolts are tight. See page 2, Changing grinding plate for
torque setting
The floor grinder is now ready to commence work.
9. Connect the machine to the power supply and turn the red isolator switch to the ON
position. Red light will illuminate on the electric panel. Ensure foot pedal is locked into the
raise position.
10. Start motor up by pressing the green button on electric panel.
11. Lower the machine on to the floor using foot pedal whilst moving the machine either
forwards or backwards. Try to grind in a figure of eight pattern for best finish
NEVER ALLOW THE MACHINE TO REMAIN STATIONARY WHILST THE GRINDING
PLATE IS ROTATING AND IN CONTACT WITH THE SURFACE
12. When lifting machine to cease grinding the head should be lifted off the floor slowly
with the dust extraction still operating in order to allow the dust to clear from the work area
13. If the operator has any difficulty whilst operating the machine press the red stop button
located on electrical panel.
